Spades

[Caesar]

Definately.  Used to play all the time as a kid, then just started back up last year.

Blitz (aka 31) is also a popular one with my group, just remember to bring your ones!  (As a strange side note, my family hates the fact that I've never lost money at that game.  At worst I've broken even over a 2-day span.  We play that game a lot over holidays).

500 sometimes, Arsehole (as Warblade so elegantly puts it) w/ my friends sometimes.

Spider Solitaire and Free Cell on XP all the time ...

But the best of all, my friend, is O' Hell.  It's actually very similar to Spades, but it's singles instead of teams, and you get dealt progressively more cards from 1 to 9 (or however many you can fit for larger groups).  Once you reach the high point, you simply go back down to 1.  Trump suit is random, picked by top card left after dealt.  When bidding, the dealer (last bidder) can never bid so that the total amount of bids = total amount of tricks.  Being first dealer is a bad idea ;)

Scoring systems vary for O' Hell, but my family's system:
-Tricks Bid if you get less than you bid.
10 points if you make your bid.
+1 per trick you take if you get more or equal to your bid.

Sorry for that dissertation, but if your interested in playing it's not that easy to find rules (and I don't agree with most house rules anyway).

Well I'm out of the loop. I've never heard of Blitz or O'Hell. I'm especially intrigued by O'Hell, although I'm not sure I get how the play works. Are there any sites that you'd recommend with a decent write-up of the rules? I'd love to give it a go the next time we play cards. Same thing for Blitz, actually, although I gather that will have to wait until poker night. Are the rules pretty standard for Blitz? If so, I'll just go ahead and look them up myself.

Cheers. :)